Feed-water heater and purifier.



. 110. 876,357. PATENTED JAN. 14, 1908.

J. 0. JONES. FEED WATER HEATER AND P-URIPIER.

APPLIOATION FILED JULY 8. 1907.

2 SHEETS-SHEET I.

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E/VTOH V ATTORN,Y

No. 876,357. PATENTED JAN. 14. 1908. J. 0. JONES. FEED WATER HEATER ANDPURIPIER.

ARPLIOATION FILED JULY 8. 1907.

2 SHEETSSHEET 2.

JOHN CLIFFORD JONES, OF WYNNEWOOD, PENNSYLVANIA.

FEED-WATER HEATER AND PURIFIER.

Specification of Letters Patent.

Patented Jan. 14:, 1908.

Application filed July 8, 1907. Serial No. 382.611.

To all whom it may concern:

Be it known that I, JOHN CLIFFORD J ONES,

a citizen of the United States, and resident of and whose post-ofliceaddress is Wynnewood, in the county of Montgomery and State ofPennsylvania, have invented certain new and useful Improvements inFeed-Water Heaters and Purifiers, of which the following is aspecification.

My invention relates to improvements in feed water heaters andpurifiers, and especially to those where the water of condensation istaken from the condenser and used over again.

The objects of my invention are to provide an economical, convenient andeffective device for re-heating the condensed water and suchsupplemental. raw water as may be nec essary to make up the amountrequired. 1 attain these objects by the device illustrated and describedin the following specification and drawings in which like numerals ofreference refer to like parts throughout the respective views.

Figure l is a top plan view of a combined heater, purifier and filterembodying my invention. Fig. 2 is an elevation thereof, showing aportion of the casing broken away and the interior parts chiefly insection. Figs. 3 and 4 are detail views showing lloat controlled valvesin both raw water and condensed water supplies. Fig. 5 is a sectionalview of the stand pipe showing the water seal connection.

Since the general structure of feed water heaters, etc., is well knownin the art, I do not illustrate those features which are common in thisdevice and which form no particular part of my improvement, and whichhave already been describechin various patents heretofore issued.

Referring in detail to Fig. 2,-1- is a. heater 2-a filter bed; 3 anoutlet passage; 4--separator; 5steam inlet; 6-inlet for raw water;7exhaust to the atmosphere; 8inlet for water coming from condensers, orother source, of partially heated water; 9 byass; 10dividing partition;l1top of fibat chamber; 1lvent for float cham ber; 12fioat andmechanism; 1. 3-staggered water trays on raw water side; 14-staggeredwater trays on condensed water side; 15-stand pipe; 16-passages forsteam in and around plate 1()-; 17-valve in supply ipe:

l eretofore in most heating devices the exhaust steam from the motors orother source has been introduced into the heater in such way as to heatonly the raw water which generally is at a comparatively low temperatureand must be heated up to nearly the temperature of the steamsay, 210.Owing to the impurity of this raw water, it should be filtered, andpreferably chemically treated, for the purpose'of precipitation andremoving these impurities, all of which is old in the art therefore willnot be more at length explained. My improvement while retaining all theadvantages of this old system performs with it and combines with it inthe same structure, an apparatus for utilizing the excess or surplusheat of the exhaust steam, for the purpose of heating the water ofcondensation, which may be taken from the condensers or from any othersource, and which is substantially chemically and mechanically pure, andwhich is already at a high temperature and therefore requirescomparatively little additional heat. It is, of course, an advantage toheat both these supplies and qualities of water at about the same timeand by the same steam su ply, and the operation of the device is asfollows:

I construct the dividing partition10- in a feed water heater in such away as to substantially divide the same into two parts. Although thispartition does not entirely cut off one part from the other, it is meantto sc arate the condensed water which enters at a comparatively hightemperature at one side of the heater from the raw water entering at acomparatively low temperature at the other side while allowingthejcirculation of steam on each side. This particularly because, as hasbeen said, the condensed water is already pure while the raw water hasyet to be treated and purified. For this reason the partition has spacesabout it or apertures in it through which the exhaust steam comingthrough land -5- may pass after having warmed the water dripping fromthe raw water trays 13 and thereupon heats the water dripping from thecondensed water trays -14 on the other side of the partition. I preferto introduce this steam in the first place at that side of the heater towhich the raw water is first introduced, since it is desirable that thecoldest water should receive the first heat of the incoming steam, sincethe pure water from the condensers is already very hot and thereforerequires a smaller increafter the two supplies are combined.

ment of heat from the steam in the heater, which increment issufficiently found in the steam after it has heated the raw water. Sincethe condensed water is already purified it need not be filtered and maypass directly to the outlet or pump supply 3. On the other hand, the rawwater, after having been chemically treated and heated, must yet befiltered, and in the figure the arrows show the circulation of the waterup through the filter into the compartment containing the alreadycondensed water with which it mixes, and where it is-at practically thesame temperaturetaken off by the pumps.

As has been pointed out, the arrangement is such that the condensedwater is heated in one compartment and the makeup water in another, butbefore reaching" the pump supply line the two waters are merged, andafter merging maintain the desired working line within the floatchamber.

In some cases it may be found desirable to use two floats see Fig. 4onecontrolling a valve in raw water supply pipe and the other controlling avalve in the condensed water supply pipe, or either float see Fig. 3 maycontrol both valves, and these should be controlled from the commonwater line level As usually operated, and as I have illustrated it, thefloat should control the operation of the valve supplying the raw waterto the sys term, because the water from the surface condenser is inpractically all casesinsuflicient for the requirements of the boilerfeed, and consequently raw, makeup water has to be added, and it is tomeasure out accurately this makeup or supplementary supply that thefloat and valve are employed.

The water from the condenser discharge enters a stand pipe 15, thencethrough the water seal connection see Fig. 5 to one division of thesystem, while the makeup water passes through another connection to theother division. The standpipe containing the water seal through whichthe condensation returns pass is vented at the top to allow the escapeof air which may be forced into the standpipe by reason of the pressurefrom the force pump.

In order to insure that there shall be sufficient quantity for the pumpsupply at all times, irrespective of the condition of the filter bed andin the case that the amount of pure water of condensation is notsufficient for the demand, I provide a by-pass *9* extending from theraw water side of the heater about the filter bed and discharging intothe pure water side. This by-pass is adapted to operate only when thefilter bed has become so clogged that not sufficient water will passthrough it to supplement sufficiently the pure heated water of condensation.

I have shown the simplest form of bytion, material, design or size in myinvention, but

What I do claim and desire to protect by Letters Patent is:

1. A heater comprising two compartments; a raw water inlet in one ofsaid compartments; a condensed water inlet in the other of saidcompartments; an exhaust steam inlet in said first mentionedcompartment; a plurality of trays in staggered relation to one anotherin said compartments arranged in series below said raw and condensedwater inlets and a vertically arranged baffle plate between the twoseries of trays, substantially as described.

2. A heater comprising two compartments for the reception and treatmentof feed water; supply pipes entering said compartments; series of traysbelow two of said pipes; a filter in one of said compartments, and abypass around said filter, substantially as described.

3. The combination of a raw water supply; a condensed water supply; anda steam supply; means intermediate said raw water and condensed watersupplies for causing the steam to heat the water supplies in succession,substantially as described.

4. In a heater the combination of raw and condensed water supply inlets;a centrally and vertically arranged partition substantially the heightof said heater and separating the said inlets; a plurality of trays instaggered relation to one another; and a steam inlet opening into saidheater at one side of said partition, substantially as described.

5. In a heater, a partition substantially the height thereof dividing itinto two compartments; a raw water inlet in one of said compartments; acondensed water inlet in the other of said compartments; a steam inletin said first compartment; a filter; and a by-pass around said filter,substantially as described.

6. The combination of a raw water compartment; a condensed watercompartment; suitable supply pipes entering said compartments a steamsupply inlet; said steam supply inlet discharging into said raw watercompartment; a plurality of trays in both compartments, and a filter,substantially as said inlets, substantially as described.

8. The combination of two compart ments a series of staggered trayssupported in the upper portions of said compartments; supply inlets insaid compartments so positioned that the supplies from two of saidinlets will be treated by the supply from the other of said inletssuccessively, substantially as described.

9. In a heater, the combination of a plurality of inlets; a plurality oftrays arranged in series below the two of said inlets; a perforatedpartition separating two 01 said inlets; a filter below one series ofsaid trays, and a by-pass around said filter, substantially asdescribed.

10. A feed water heater comprising a tank or receptacle divided into twochambers, the first chamber being a raw water chamber having an inlet;the second chamber being a condensed water chamber having an inlet; aby-pass communication with said raw water chamber; a steam inletdischarging into said raw water chamber, and a water outlet, sub'-stantially as described.

1 1. A feed water heater comprising a tank or receptacle divided intotwo chambers; the first chamber being a raw water chamber; the secondchamber being a condensed water chamber; means for introducing steaminto both chambers successively; a plurality of staggered trays arrangedin series in said chambers; a filter below one series of trays in one ofsaid chambers, and means automatically operating to control the supplyfrom said inlets, and an outlet, substantially as described.

12. A feed water heater having two compartments passages communicatingbetween the same above the water line; means for introducing raw waterinto one and conments; and means for introducing steam into saidcompartments successively, substantially as described. I 13. Thecombination of a compartment l for raw water; a compartment forcondensed lwater; passages connecting the two compartments; suitable rawand condensed water supplies to respective compartments; a steam supplyfor successively heating the two water supplies; and a filter,substantially as described.

14. The combination of a compartment for raw water; a compartment forcondensed water; passages connecting the two compartments; suitable rawand condensed water supplies to respective comparti'nents; a steamsupply; a filter; and a by-pass about the filter, substantially asdescribed.

15. The combination ol" a compartment for raw water; a compartment forcondensed water; passages connecting the two compartments; suitable rawand condensed water supplies to respective compartments; a steam supply;a filter; an outlet and a bypass communicating between the raw watercompartment and the outlet, substantially as described.

16. The con'lbination of a compartment for raw water; a compartment orcmidensed water; passages connected the two com partments; suitable rawand condensed water supplies to respective compartments; a steam supply;a lilter; and a by-pass connecting the raw water and the condensed watercompartments, substantially as described.

Signed at Philadelphia in the county of Philadelphia and State ofPennsylvania this 22nd day of June 1907.

JOHN CLIFFORD JONES.

\Vitnesses:

MARY :E. NIVEN, l\'lARY L. Lewis.

I densed water into the other of said compartl

